<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Killer-89757</title>
</head>
<body>
  <h1>用户登录界面</h1>
  <form method="post">
      <input type="text" name="user"></input>
      <input type="text" name="pwd"></input>
      <input type="submit" value="提交"> <span style="color: red">{{error}}</span>
  </form>
</body>
</html>